skills.rest
appleappleOfficial·2 Agent Skills Included

foundation-models-utilities

Swift utilities for chat endpoints, skills, and history

Connects Swift apps to any OpenAI-compatible chat completions endpoint through Apple's Foundation Models framework. Adds on-demand skills the model activates via tool calls, plus history modifiers that drop tool calls, apply rolling windows, and summarize transcripts. Eliminates manual context-window management and custom networking code for server-hosted language models.
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npx skills add apple/foundation-models-utilities --all -g -y

All Skills in This Repository (2)

Pure Emerald Level Indicators
📦 In Repo
appleapple

foundation-models-language-model-protocol

Connect server-side language models to Apple's Foundation Models framework.

Official
Advanced
📦 In Repo
appleapple

foundation-models-utilities

Manage custom skills and chat completions via the Foundation Models framework.

Official
Intermediate

Frequently Asked Questions

FAQPage Schema
How to install foundation-models-utilities?▼

Run `npx skills add apple/foundation-models-utilities --all -g -y` in your terminal to install all skills in this suite globally.

How to connect Swift apps to a local LLM server?▼

Use ChatCompletionsLanguageModel with your server's base URL, then pass it to a standard LanguageModelSession. It streams responses through the OpenAI chat completions protocol.

How to stop long chats from overflowing the context window?▼

Compose the history modifiers: droppingCompletedToolCalls, rollingWindow, and summarizeHistory. They compress the transcript automatically before each generation.

What are just-in-time skills in Foundation Models?▼

Skills keep extra instructions out of the prompt until the model activates them with a tool call. This reduces context pollution and speeds up time-to-first-token.

Does this package work on Linux?▼

Yes. It supports macOS, iOS, visionOS, watchOS, and select Linux distributions like Ubuntu via Swift Package Manager.

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